Yo guys. Everyone knows it isn't easy to get a girl to reply to you on Facebook to an stranger(at least for me lol). So basically, I sent an "Hey" to a girl and she replied me "Hey". What can you say to her from there ? Do you say like "I think you cute and wanted to say hi to you" or what ? Please advice me since Facebook game is not my strong side

By the way, me and her are strangers we aren't friends or anything. And this communication is taking place on Facebook messenger